Recommendations for Hi Pot Tester

[AdnanZ]

Hi Guys,

Does anybody have any good recommendations for a Hi Pot Tester. There are three things my customer is looking for even though they are not really essential:

- Good settling time.

- USB or Ethernet connectivity.

- LabVIEW driver.

Like I said, the above are not essential. If you have good recommendations that do not match the above requirements, still let me know; just looking for a good product out there.

[AnalogKid2DigitalMan]

Morning Adnan:

It's been many years since I've spec'd one out. Slaughter is one manufacturer I have used (their slogan used to be Slaughter- The Protesters 🙂 ).

Do you need AC or DC, how much voltage and current? An optically isolated communications port may be a feature to look for. High voltage + PC = smoke.

-AK2DM

[AdnanZ]

Thanks! I need AC with probably 500V and current can be minimal, around 10mA, or even lesser. I already have tried one from Vitrek but really looking for something with the specifications above especially fast settling time.

[AnalogKid2DigitalMan]

Adnan:

Are you talking about ramp time to the desired voltage? Settling time does not make sense to me for an AC HiPot test- the voltage will never settle since it is an alternating voltage. Traditional HiPot testing also applies the voltage for a given number of seconds to ensure the insulation is stressed for a sufficient amount of time. Motors, appliances, etc typically get zapped for 60 seconds, at least from what I remember from the systems I've done.

What are you testing?

-AK2DM

[AdnanZ]

Sorry was talking about the ramp time; got the attributes confused there. We are testing some heater coils, and are using the hi-pot to test for a second. This works fine for the test we are doing but sending a serial command, and waiting for the hi-pot tester to run the test is taking about 5 secs (for a one second test) and we are just interested in reducing that time.

[Wayne.C]

I know we have used QuadTech http://www.quadtech.com/ in the past.  Pretty sure they have LV libs. 

[AnalogKid2DigitalMan]

This one has a 0.1 second minimum ramp, serial port (with optional GPIB??) and a LabVIEW driver (very dated though- v 4)

Look for the Guardian 500VA model.

Wonder why your test takes so long- have you gone through all the settings? I think some units have a post dwell delay after power is removed as a safety feature.

Hope this helps.

Edit- forgot link:

http://www.quadtech.com/products/8

-AK2DM

Message Edited by AnalogKid2DigitalMan on 05-19-2009 01:00 PM

[AnalogKid2DigitalMan]

Forgot to mention, you may want to look at Associated Research, nice units, but a bit costly.

http://www.asresearch.com/

-AK2DM